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Since 1987, National Agricultural Research Systems with IRRI have been actively collaborating in collecting wild rices. To date, this program has involved 11 countries and details have been described elsewhere (Vaughan, 1990). Trip reports, including comprehensive passport data on material collected during these missions are deposited in and accessible from the IRRI library. In addition to new accession from these collaborative collecting missions, the International Rice Germplasm Center has received recently new samples of wild Oryza germplasm from Australia, Brazil, China, the Cameroons and Mali have been added in the last three years. A summary of these newly accessioned materials is presented (Table 1). A partial set of the collections maintained by the National Institute of Genetics of Japan has also recently been added to provide safe duplication of these stocks (see Sano, 1985).
An inventory of all the seed stocks of Oryza glaberrima and wild Oryza species conserved at the IRRI is currently underway and will be summarized in the next Rice Genetics Newsletter.
References
Sano, Y., 1985. List of genetic stocks of wild rice species preserved in Japan. Pages 26-28. In Rice Genetics Newsletter Volume 2. December 1985.
Vaughan, D. A., 1990. Recent collecting of the wild relatives of rice in Asia. IBPGR Newsletter for Asia and Pacific. (in press.)
Table 1. An enumeration of accession of wild Oryza germplasm in
International Rice Germplasm Center acquired since 1987
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Origin Species No. of accessions
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Australia O. australiensis 16
O. meridionalis and O. rufipogon 28
Bangladesh O. nivara 1
O. riifipogon 18
O. rufipogon/O. nivara 1
O. rufipogon/O. sativa 2
O. rufipogon/O. spontanea 1
O. spontanea 22
Brazil O. alta 1
O. glumaepatula 14
O. grandiglumis 3
Cambodia Hybrid swarm 1
O. nivara 28
O. rufipogon 5
O. spontanea 2
O. spontanea/O. nivara 1
Cameroon O. barthii 6
O. punctata 5
China(PROC) O. officinalis 5
O. riifipogon 3
O. rufipogon/O. nivara 3
O. rufipogon/O. spontanea 4
India O. indandamanica 1
O. malampuzhaensis 2
O. nivara 18
O. nivara/O. sativa 4
O. officinalis 3
O. rufipogon 4
O. rufipogon/O. nivara 12
O. spontanea 7
Indonesia O. officinalis 30
O. ridleyi 2
O. rufipogon 8
Kenya O. punctata 1
Malaysia(West) O. meyeriana 1
O. officinalis 1
O. rufipogon 2
Mali O. barthii 33
Nepal O. granulata 1
O. nivara 9
O. rufipogon 3
Philippines O. minuta 1
Sri Lanka O. eichingeri 10
O. granulata 1
O. nivara 24
O. rhizomatis 11
O. rufipogon 11
Thailand Hybrid swarm 2
O. granulata 1
O. nivara 67
O. nivara/O. sativa 2
O. nivara/O. spontanea 4
O. officinalis 3
O. ridleyi 2
O. rufipogon 63
O. rufipogon/O. nivara 4
O. rufipogon/O. spontanea 1
O. spontanea 37
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Total 556
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Notes:
a) Four accessions of Hygroryza aristata (related genus) were also received.
b) Twenty one accessions are yet to be identified.
c) 193 accessions which have recently been added from the National Institute of Genetics for duplicate storage are not included in this list.
d) 280 new incoming materials from Cameroon, India, Indonesia, Laos, Malaysia, Mali, Philippines and Vietnam have yet to complete quarantine clearance and/or be assigned accession numbers.
